Roller skate base plate



FIG. 1 is a perspective view of a roller skate base plate showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a right side elevational view thereof, the broken line showing of the skate shoe and wheels is for illustration only and forms no part of the claimed design. 

The ornamental design for a roller skate base plate, as shown and described. 